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Products: AC-DC ICs: iW3620

iW3620 Digital PWM Constant Current Controller for AC/DC LED Driver

iw1692

Features

  • Primary-side feedback eliminates opto-isolators and simplifies design
  • Quasi-resonant operation for highest overall efficiency and low EMI
  • Up to 130 kHz switching frequency enables small size
  • Very tight LED constant current regulation
  • Built-in output constant-current control with primary-side feedback for LED driver.
  • Low start-up current (10 μA typical)
  • Built-in soft start
  • Built-in short circuit protection and output overvoltage protection
  • Current sense resistor short protection
  • Over-temperature Protection
  • Open circuit protection
  • Universal input range from 85 Vac to 264 Vac
  • Single-fault protection
  • Small input bulk capacitor
  • Long MTBF
  • High efficiency

Application

  • Solid State LED lighting for incandescent, halogen, and fluorescent tube replacement

 

To order a sample of any of our products, please complete the following form. We will provide up to five parts free of charge. Our sales department will provide pricing for samples orders exceeding five parts.

News

March 1, 2010
iWatt to present at AGC 6th Annual West Coast Emerging Growth Conference in San Francisco, CA

February 18, 2010
iWatt, Inc. to present at APEC 2010 in Palm Springs, CA

November 23, 2009
iWatt, Inc. Introduces Primary Side Regulated Digital PWM Controller for Dimmable LED Lighting

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